Products Preservatives can be found in liquid, semi-solid and solid pharmaceuticals. They are also used for food and cosmetics. Structure and properties Preservatives belong to various chemical groups. These include, for example: Acids and their salts Benzoic acid derivatives, 4-hydroxybenzoic acid derivatives. Quaternary ammonium compounds Alcohols Phenols Preservatives can be of natural and synthetic origin. … Preservative
Products Marshmallow syrup is available in pharmacies and drugstores. You can make it yourself or purchase it from suppliers. Marshmallow is also a typical ingredient in snail juice and the syrup is also used to make finished medicines. Ingredients Various manufacturing regulations exist. For example, the German Drug Codex (DAC) and the Austrian Pharmacopoeia (ÖAB) … Marshmallow Syrup
Definition On the one hand, drugs contain the active ingredients that mediate the pharmacological effects. On the other hand, they consist of excipients, which are used for the production or to support and regulate the drug effect. Placebos, which consist only of excipients and contain no active ingredients, are an exception. Excipients can be of … Auxiliary Materials
Products Parabens are found in numerous pharmaceuticals, cosmetics, and foods, among other products, as excipients or food additives. Structure and properties Parabens are ester derivatives of 4-hydroxybenzoic acid (= para-hydroxybenzoic acid). They exist as white, odorless and tasteless powders and are sparingly soluble in water. Water solubility decreases with the length of the side chain. … Parabens
Products Methyl 4-hydroxybenzoate (methylparaben) is present in many drugs as an excipient, especially in liquid and semisolid dosage forms. Structure and properties Methyl 4-hydroxybenzoate (C8H8O3, Mr = 152.1 g/mol) exists as a white crystalline powder that is very sparingly soluble in water (about 1.8 g per liter at 20°C). The melting point is about 125°C. … Methyl 4-Hydroxybenzoate
Products Propyl 4-hydroxybenzoate (propylparaben) is used as an excipient in many drugs, especially in liquid and semisolid dosage forms. Structure and properties Propyl 4-hydroxybenzoate (C10H12O3, Mr = 180.2 g/mol) exists as a white crystalline powder and is very slightly soluble in water. The melting point is about 99 °C. Propyl 4-hydroxybenzoate belongs to the paraben … Propyl 4-Hydroxybenzoate
Products Ethyl 4-hydroxybenzoate is mainly used as an excipient in liquid pharmaceuticals. Structure and properties Ethyl 4-hydroxybenzoate (C9H10O3, Mr = 166.2 g/mol) exists as a white crystalline powder or as colorless crystals and is very sparingly soluble in water. Ethyl 4-hydroxybenzoate belongs to the group of parabens. It is the ethyl ester of -hydroxybenzoic acid. … Ethyl 4-Hydroxybenzoate
